Study on suppressing the vortex-induced vibration of flexible riser in frequency domain

doi:10.1016/j.apor.2021.102882

IMECH-IR > 流固耦合系统力学重点实验室

	Study on suppressing the vortex-induced vibration of flexible riser in frequency domain
	Song JX(宋吉祥)1,2 ; Chen WM(陈伟民)1,2 ; Guo SX(郭双喜)1,2 ; Yan DB(严定帮)1,2
通讯作者	Chen, Weimin(wmchen@imech.ac.cn)
发表期刊	APPLIED OCEAN RESEARCH
	2021-11-01
卷号	116 页码:12
ISSN	0141-1187
摘要	Vortex-induced vibration (VIV) may cause severe fatigue damage on deep-sea flexible risers. In many researches on active control of VIV, numerical simulation is widely used because of its suitability for parametric studies and lower cost compared to experiments. However, the existing numerical simulations rarely consider the change of lift during the active control of VIV due to the complexity of the control method. Moreover, the calculation time of numerical simulation is relatively long in the time domain. To solve these problems, the active control proposed in this paper is carried out in the frequency domain. A boundary control method considering the change of lift force is proposed through an active control bending moment is applied to the top of riser. Compared with the experimental and numerical results of the flexible riser model under shear flow, the effectiveness of the proposed method is verified. In addition, the effects of different shear currents and different controlled bending moments on structural fatigue damage are studied. The results demonstrated that the reduction of fatigue damage is smaller when the control bending moment is small. As the control bending moment increases, the reduction of fatigue damage increases. However, when the control bending moment exceeds the critical value, the fatigue damage no longer decreases. From the total power perspective, the control energy and the proportion of energy in the system increase with the growth of the control moment. It is difficult to directly obtain the optimal control bending moment although there is an optimal control bending moment. Trial calculations are used to obtain the optimal control bending moment in this paper. The greater the shear currents, the greater the required control bending moment.
关键词	Flexible riser Vortex-induced vibration Active control Frequency domain
DOI	10.1016/j.apor.2021.102882
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000705510700005
关键词[WOS]	BOUNDARY CONTROL ; ACTIVE CONTROL ; MARINE RISERS
WOS研究方向	Engineering ; Oceanography
WOS类目	Engineering, Ocean ; Oceanography
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22000000]
项目资助者	Strategic Priority Research Program of the Chinese Academy of Sciences
论文分区	二类
力学所作者排名	1
RpAuthor	Chen, Weimin
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/87603
专题	流固耦合系统力学重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Song JX,Chen WM,Guo SX,et al. Study on suppressing the vortex-induced vibration of flexible riser in frequency domain[J]. APPLIED OCEAN RESEARCH,2021,116:12.
APA	宋吉祥,陈伟民,郭双喜,&严定帮.(2021).Study on suppressing the vortex-induced vibration of flexible riser in frequency domain.APPLIED OCEAN RESEARCH,116,12.
MLA	宋吉祥,et al."Study on suppressing the vortex-induced vibration of flexible riser in frequency domain".APPLIED OCEAN RESEARCH 116(2021):12.

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